top button
Flag Notify
    Connect to us
      Facebook Login
      Site Registration

Facebook Login
Site Registration

What is the area of the symbol (shaded region) ?

+2 votes
273 views

The symbol is made from three concentric circles and three equally spaced diameters of the large circle. The diameter of the large circle is 12, the diameter of small circle is 4 and the diameter of smallest circle is 2. What is the area of the symbol (shaded region) ?

enter image description here

posted Feb 3, 2015 by Ankur Athari

Share this puzzle
Facebook Share Button Twitter Share Button LinkedIn Share Button

1 Answer

+5 votes

[(area of large circle-area of small circle)/2]+area of smallest circle
= [(36π-4π)/2]+π
=16π+π
=17π is the answer

answer Feb 3, 2015 by Jaspalsingh Parmar



Similar Puzzles
0 votes

A rectangle has a side length equal to 10.
Two semicircles are constructed with their diameters equal to the length of 10 and along opposite sides of the rectangle, as shown.
A circle is inscribed between the intersection points of the semicircles and tangent to the two sides of 10 on the rectangle.
What is the area of the shaded region in which the two semicircles are overlapping?

enter image description here

0 votes

Right triangle ABC is rotated and translated to A’B’C’, as shown below, with B’ exterior to ABC.
What is the area of the shaded region BDC divided by the area of the entire shape BADB’A’B?
enter image description here

0 votes

The 2 diagonals of this rectangle divide it into 4 triangles.

enter image description here

If the area of the shaded region is 42, then what is the area of the rectangle?

Contact Us
+91 9880187415
sales@queryhome.net
support@queryhome.net
#280, 3rd floor, 5th Main
6th Sector, HSR Layout
Bangalore-560102
Karnataka INDIA.
QUERY HOME
...